The latest on the Russia–Ukraine crisis, March 25. Click here for updates from March 24. Russia Warns West: Gas Bills in Roubles Are Just Days Away Russia warned the West on Friday that billing in roubles for billions of dollars of natural gas exports to Europe could be just days away, Moscow’s toughest response yet to crippling sanctions imposed by the West for the invasion of Ukraine. With the Russian economy facing its gravest crisis since the years that followed the break-up of the Soviet Union, President Vladimir Putin on Wednesday hit back at the West, ordering that Russian gas exports should be paid for in roubles. The Kremlin on Friday said Putin had ordered Gazprom, the world’s biggest natural gas company, which supplies 40 percent of Europe’s gas, to accept export payments in roubles, and that it had just four days left to work out how. “There is an …